Home / 99,383.28-149,074.92-68,123.76

Finding the Fourth Proportional to 99,383.28, 149,074.92 and 68,123.76

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Solution

The fourth proportional to 99,383.28, 149,074.92 and 68,123.76 is: 102,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,383.28 : 149,074.92 = 68,123.76 : x
  2. Step 2: Convert to fraction form
    99,383.28/149,074.92 = 68,123.76/x
  3. Step 3: Cross multiply
    99,383.28x = 149,074.92 × 68,123.76
  4. Step 4: Simplify right side
    99,383.28x = 10,155,544,072.10
  5. Step 5: Solve for x
    x = 10,155,544,072.10/99,383.28
  6. Step 6: Final answer
    x = 102,185.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.